Hoisting and dumping apparatus.



Patented May l3, I902.

C. A. MORRIS.

HOISTING AND DUMPlNG-APPARATUS.

(Application filed Apr. 5, 1900. Renewedfiept. 26, 1901.)

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N0. 699,806. Patented May l3, I902.

C. A. MORRIS.

HDISTING AND DUMPING APPARATUS.

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ran STAS "ATEN ()FFICE.

CHARLES A. MORRIS, OF GLENRIDGE, NEW JERSEY.

HOISTING AN D' DU M PING APPARATU S.

srscrrrcnrron forming part of Letters Patent No. 699, dated y 1902-Application filed April 5, 1900. Renewed September 26, 1901. Serial No.78,686- (No model.

To aZZ whom it may concern:

Be it known that 1, CHARLES A. MORRIS, a citizen of the United States,residing at Glenridge, in the county of Essex and State of New Jersey,have invented certain new and useful Improvements in Hoisting andDumping Apparatuses, of which the following is a specification.

This invention relates to an apparatus for hoisting and dumpingmaterials such as coal, earth, and the like; and the object of theinvention is to provide a simple and efficient apparatus furnished witha counterweighted dumping-guide and means for automatically locking andunlocking said guide.

In the accompanying drawings, which illustrate an embodiment of theinvention, Figure 1 is a side elevation of the apparatus, showing thebucket suspended; and Fig. 2 is a plan of the same. Fig. 3 is asectional view showing the bucket dumped. Fig. 4 is asomewhat-diagrammatic view showing the automatic devices for stoppingthe motor and allowing the bueket to descend.

1 is a supporting-frame mounted in any suitable position, as at the endof an outrigger or on the boom or spar of a derrick, so as to overhangthe point where the load is to be taken on. In this frame are mountedarockshaft 2 and a suitable guide-sheave 3.

4 is the dumpingguide, herein shown as oylindrical in plan and securedatits upper edge to the shaft 2 through the medium of a sleeve 5, whichembraces the shaft. The lower end of the guide a may be flared, as seenat 4E, and the top thereof maybe out off obliquely, as seen at 1. Abovethe point where the guide is fixed to the shaft 2 is a sheave 6, mountedrotatively in bearing-brackets 7 on the guide, and in said brackets,with its periphery alined substantially with the axis of the guide, isanother sheave 8. The hoistingrope 9 passes under the sheave 3 and overthe sheaves 6 and 8, depending thence down through the axis of the guideto the point where the loaded bucket 10 is hooked on.

The bucket is cylindrical and of such size as to enter freely but rathersnugly into the dumping-guide. It'has a bar or bail 10 to receive theattaching-hook 9' on the hoistingrope 9.

On the respective ends of the shaft 2 are fixed counterweight-cams 11,each of which comprises a base-plate, onthe face of which are formed orfixed a grooved convex part or element 11 and a radially-arrangedgrooved part or element 11". The counterweight-rope 12 is fixed at theboss of the cam 11 and extends out radially between the two members 11and 11 over a sheave 13 on the frame and has suspended from it a weight14. The guide 4 is counterbalanced somewhat yieldingly by the upwardpressure of the cam member 11 on the taut rope 12. a

15 is the inclined chute into which the material is dumped. This chuteis secured in the frame 1 at its upper end and directs the material tothe point desired. Then the bucket is being hoisted, the strain isthrown on the sheaves 6 and 8 in a manner tending to rock the guide tothe dumping position, and to prevent this rocking of the guideprematurely it is provided with a locking-latch 16, pivoted in a bracket17 on the side of the guide next to the frame and adapted to engage akeeper 18 on the frame 1 or on the chute. Normally the latch engages itskeeper and prevents the guide from rocking; but as the bucket in risingenters the guide and nears the highest point of the lift its margin.

encounters an inturned lug 19 on an operating-rod 19, coupled to theinner arm of the pivoted locking-latch, thus operating to release thelatter. The continued lifting effort rocks the dumping-guide and bucketto the position seen in Fig. 3, which has the effect of dumping thecontents of the bucket into the chute 15. I v

The tilting of the guide 4 in dumping causes the element 11 of the cam11 to press down upon the rope 12 in such manner as to raise the weight14, so that when the hoisting-rope is slackened to lower the bucket thecounterweight 1 1 acts through its rope and the cam member 11 to turnthe guide back until it will descend by gravity to its normal position.The cam and counterweight also return the bucket, which is in the guide,to the proper position for it to be lowered.

When the guide comes to rest in its normal horizontal position and thebucket descends out of it, the locking-latch 16 is permitted to engageits keeper 18, the weight of the rod 19 on its inner arm being relied onto effect the engagement. The hoistingrope 9 may be led to any desiredpoint and either over or under the guide-sheave 3. This feature willdepend upon circumstances, such as the position of the hoisting engineor motor, the character of the derrick or outrigger, and the like.

There may be means for automatically stopping the hoisting-engine at thecompletion of thevdumping operation and the releasing of thefriction-clutch of the hoist. Such a device is illustrated somewhatdiagrammatically in Fig. 4, wherein represents an electric motor whichdrives the Windlass-barrel 21 through a friction-clutch 22 and gearing23. The clutch members are held in driving contact by a weighted arm 24in a known construction. The motor-circuit 25 has in it a breakcontrolled by a switch-arm 26. There is a lever 27 on the frame of theapparatus, which is coupled by a wire or cord 28 to the switch arm 26,and when the bucket is dumped a pin or stud 29, which may be on the cam11, impinges on the lever 27, rocks it, and causes the arm 26 to breakthe motorcircuit. This is arranged to occur a moment before thecompletion of the dumping, and the further slight movement of thedumpingguide in completing the dumping frees the members of the clutch22 through a cord or wire 30, which connects the switch-arm 26 with theweighted lever 24 by lifting the said arm. The object of this device isto automatically arrest the winding of the hoisting-rope as soon as thedumping movement is finished and before any injury can be done, and itwill be obvious that other means than that shown can be employed toeffect this. If a steam-engine be employed for hoisting, the cord 28 maybe connected with the throttle thereof for shutting off the steam.

Obviously the bucket or receptacle for the material to be hoisted may beof any shape, size, or construction desired. As herein shown, it isdesigned for doing relatively light work.

Some of the features shown, but not claimed herein, are shown andclaimed in another pending application of mine filed on April 4, 1900,under serial number 11,436.

Having thus described my invention, I claim 1. A hoisting and dumpingapparatus, having a supporting-frame, a dumping-guide hinged in saidframe and provided with guidesheaves for the hoisting-rope, the saidrope, the bucket, and a locking device which looks said guide fromturning, said device adapted to be unlocked by the ascending bucket,substantially as set forth.

2. A hoisting and dumping apparatus, having a supporting frame, adumping guide hinged in said frame and provided with guidesheaves forthe hoisting-rope, the bucket, a locking-latch carried by said guide, akeeper mounted on the frame and adapted to be engaged by said latch, andmeans whereby the ascending bucket releases said latch when it entersthe said guide, substantially as set forth.

3. A hoisting and dumping apparatus, having a supporting-frame, adumping-guide hinged in said frame and provided with guidesheaves forthe hoisting-rope, the said rope, the bucket, and a locking device whichlocks said guide from turning, said device consisting of akeeper 18, ona fixed part of the apparatus, a locking-latch l6, pivotally mounted onthe dumping-guide, and an operating-rod 19, coupled to said latch andprovided with a lug 19 which extends into the path of the ascendingbucket substantially asset forth.

4. Ahoisting and dumping apparatus, having a supporting-frame, a chute,a dumpingguide hinged in said frame, means for counterbalancing saidguide yieldingly in its normal position automatic means for locking saidguide against dumping, the hoisting-rope and bucket, and means wherebythe ascending bucket, when it enters said guide, unlocks the latter,substantially as set forth.

5. Ahoisting and dumping apparatus, having a supporting-frame, a chute,a dumpingguide hinged in said frame, means for counterbalancing saidguide yieldingly, in its normal position, means for turning said guideback after dumping, guide-sheaves carried by said guide, a hoisting ropeover said sheaves a bucket means for locking said guide in its normalposition during the hoisting of the bucket, and means actuated by theascending bucket when it enters said guide, for releasing the lattersubstantially as set forth.

6. A hoisting and dumping apparatus having a supporting-frame, a tiltingdumpingguide in said frame, a bucket, raising and lowering meanstherefor and means for automatically locking the dumping-guidesubstantially as described.

In witness whereof I have hereunto signed my name, this th day of March,1900, inthe presence of two subscribing witnesses.

CHARLES A. MORRIS.

Witnesses:

PETER A. Ross, HENRY CONNETT.

IIO

